I Use Everything to Prove Immortality

Mortal bones mixed with spiritual roots, no talent, no chance, no background. Others rely on their bones to cultivate immortality, but I rely on deduction to cultivate immortality. Breathing and breathing counts as rhythm, spiritual energy counts as purity, skills count as flaws, and secret realms count as routes. One step at a time, one at a time. Use calculation to enter the Tao, use wisdom as a sword, and even mortal bones can ascend to the sky.